Remembering Space Shuttle Challenger

NASA, Knight Ridder Tribune

Solid rocket boosters form a Y shape as they separate from the exploding external fuel tank and the space shuttle Challenger shortly after launch on Jan. 28, 1986. All seven crew members were killed in the accident.

Solid rocket boosters form a Y shape as they separate from the exploding external fuel tank and the space shuttle Challenger shortly after launch on Jan. 28, 1986. All seven crew members were killed in the accident. (NASA, Knight Ridder Tribune)

Solid rocket boosters form a Y shape as they separate from the exploding external fuel tank and the space shuttle Challenger shortly after launch on Jan. 28, 1986. All seven crew members were killed in the accident.